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Paper

A comparison between a yeast cell wall extract (Bio-Mos®) and palm kernel expeller as mannan-oligosac-charides sources on the performance and ileal microbial population of broiler chickens

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Article: 3452 | Received 11 May 2014, Accepted 30 Aug 2014, Published online: 17 Feb 2016
 

Abstract

The present study was conducted to determine the effect of a yeast cell wall extract (Bio-Mos) and palm kernel expeller (PKE) on the performance, nutrient digestibility, and ileal bacteria population of broiler chickens. A total of 60 1-d-old male broiler chicks (Cobb 500) were fed one of the 3 isonitrogenous and isocaloric diet including a control diet, or a control diet supplemented with 2 g/kg Bio-Mos (1-42 d), and for the third group, the control diet at 1-28 d following a diet containing 200 g/kg of an enzymatically-treated PKE at 29-42 d. The weight gains of birds fed the PKE containing diet (96.17 g/d) were less than other groups (109.10 and 104.42 g/d for the Bio-Mos and control diet, respectively) (P<0.05). Dietary inclusion of PKE increased bird’s feed intake (214.45 g/d) and feed conversion ratio (FCR) (2.23) than the Bio-Mos diet (194.87 and 1.79 g/d for feed intake and FCR, respectively) (P<0.05). The PKE diet had lower digestibility coefficients for dry matter (83.37%), ash and crude protein (78.63%) than the PKE free diets (P<0.05). As a ratio of the ileal total bacteria, there were no differences in the ileal population of Lactobacilli and Enterococcus genus or Enterobacteriaceae among the experimental groups (P>0.05), but the birds fed PKE or Bio-Mos containing diets had a lower population of Escherichia coli than the control group (P<0.05). The results showed that PKE potentially has a prebiotic property for chicken; however, a 200 g/kg dietary inclusion rate of PKE is not commercially recommendable because of its negative effects on the nutrients digestibility.

Acknowledgments

this study was supported by the Ministry of Education Malaysia, under the Long Term Research Grant (LRGS 2/2012).